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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Electrocardiogram Clear all
Completed No phase listed Observational

The Signal-averaged ElectrocArdiogram in Long Term Follow-up of Chronic CHagas Disease - RIO de Janeiro Cohort

NCT01340963
View directory record Official record
Conditions
Chagas Cardiomyopathy, Cardiac Arrhythmia, Stroke, Left Ventricular Function Systolic Dysfunction, Cardiac Death
Interventions
Not listed
Lead sponsor
Universidade Gama Filho
Other
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 9, 2013 · Synced Sep 14, 2026, 9:14 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Influence of Progesterone Administration on Drug-Induced QT Interval Lengthening

NCT01929083
View directory record Official record
Conditions
Prolonged QT Interval in EKG and Sudden Death
Interventions
Progesterone, Placebo, Ibutilide
Drug
Lead sponsor
Indiana University
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 29, 2015 · Synced Sep 14, 2026, 9:14 PM EDT
Completed Phase 1 Interventional

VEG111485: A QTc Study of Pazopanib

NCT00861029
View directory record Official record
Conditions
Carcinoma, Renal Cell
Interventions
Pazopanib, Placebo for pazopanib, Moxifloxacin, Placebo for moxifloxacin
Drug · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
8
States / cities
Duarte, California • Santa Monica, California • Detroit, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2017 · Synced Sep 14, 2026, 9:14 PM EDT
Terminated Phase 2 Interventional Results available

Sacituzumab Govitecan for Relapsed Ovarian, Endometrial, and Cervical Carcinomas

NCT06865677
View directory record Official record
Conditions
Recurrent Platinum Resistant Epithelial Ovarian Carcinoma, Recurrent Epithelial Endometrial Carcinoma, Recurrent Epithelial Cervical Carcinoma
Interventions
Sacituzumab Govitecan, EKG, Brain MRI, CT scans, Tumor biopsy, Loperamide, Octreotide, Diphenoxylate/Atropine, Antiemetics
Drug · Diagnostic Test · Procedure
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 120 Years · Female only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Sep 14, 2026, 9:14 PM EDT
Not yet recruiting Not applicable Interventional

MM-CARE: Cardiovascular Risk Assessment in Adults With Multiple Myeloma

NCT07783607
View directory record Official record
Conditions
Multiple Myeloma, Heart Disease Risk Factors
Interventions
Oncology-Embedded Cardiovascular Risk Assessment Pathway, Primary Care Provider-Directed Cardiovascular Risk Assessment Pathway
Other
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2028
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Sep 14, 2026, 9:14 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Effects of Vitamin D and Omega-3 Supplementation on Telomeres in VITAL

NCT04386577
View directory record Official record
Conditions
Aging
Interventions
Vitamin D3 (cholecalciferol), fish oil
Dietary Supplement · Drug
Lead sponsor
Augusta University
Other
Eligibility
50 Years and older
Enrollment
1,054 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated May 12, 2020 · Synced Sep 14, 2026, 9:14 PM EDT
Completed No phase listed Observational

Prevalence of Chagas Disease in Immigrant Patients With Conduction Abnormalities on Electrocardiogram

NCT00453700
View directory record Official record
Conditions
Chagas Disease
Interventions
Trypanosoma cruzi serology
Procedure
Lead sponsor
Olive View-UCLA Education & Research Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
327 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Sylmar, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2019 · Synced Sep 14, 2026, 9:14 PM EDT
Completed Not applicable Interventional Results available

Scrambler Therapy in the Treatment of Chronic Chemotherapy-Induced Peripheral Neuropathy

NCT02111174
View directory record Official record
Conditions
Neuropathy
Interventions
Scrambler Therapy, Sham Therapy
Device
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Sep 14, 2026, 9:14 PM EDT
Completed Phase 1 Interventional

Improvement of Use Dependent Plasticity in Chronic Stroke Patients

NCT00072735
View directory record Official record
Conditions
Healthy, Cerebrovascular Accident
Interventions
Electrocardiogram
Procedure
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 14, 2026, 9:14 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Non-Invasive and Non-Contact Intracranial Pressure Waveform Recording Using Dynamic Video Ophthalmoscopy

NCT04046523
View directory record Official record
Conditions
Intracranial Pressure Increase
Interventions
Video ophthalmoscope
Device
Lead sponsor
University of Minnesota
Other
Eligibility
4 Years and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2030
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 14, 2026, 9:14 PM EDT
Active, not recruiting Phase 1 Interventional

Lenalidomide, Ibrutinib, and Rituximab in Treating Patients With Relapsed or Refractory Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma That Is Metastatic or Cannot Be Removed by Surgery

NCT02160015
View directory record Official record
Conditions
Recurrent Chronic Lymphocytic Leukemia, Recurrent Small Lymphocytic Lymphoma, Refractory Chronic Lymphocytic Leukemia, Refractory Small Lymphocytic Lymphoma
Interventions
Biospecimen Collection, Bone Marrow Biopsy, Computed Tomography, Electrocardiogram, Ibrutinib, Lenalidomide, Magnetic Resonance Imaging, Rituximab
Procedure · Drug · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2027
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 14, 2026, 9:14 PM EDT
Completed No phase listed Observational

A Study to Determine the Feasibility of Wireless Electrocardiography

NCT02162394
View directory record Official record
Conditions
Atrial Fibrillation, Premature Atrial and Ventricular Beats, Conduction Defects, Normal Sinus Rhythm
Interventions
Observational ambulatory ECG monitoring
Device
Lead sponsor
Peerbridge Health, Inc
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 24, 2017 · Synced Sep 14, 2026, 9:14 PM EDT
Completed No phase listed Observational

Smartphone Twelve Lead Electrocardiogram Utility In ST-Elevation Myocardial Infarction

NCT03037229
View directory record Official record
Conditions
STEMI
Interventions
Smartphone ECG, Standard 12-lead ECG
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 6, 2018 · Synced Sep 14, 2026, 9:14 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Odiparcil QT Definitive Study

NCT00437242
View directory record Official record
Conditions
Fibrillation, Atrial, Atrial Fibrillation
Interventions
Odiparcil
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 60 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2006
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 3, 2012 · Synced Sep 14, 2026, 9:14 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Evaluating the Roles of Estrogen and Progesterone in Heart Metabolism

NCT00565916
View directory record Official record
Conditions
Postmenopausal Syndrome
Interventions
Estrogen, Progesterone, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
55 Years to 75 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Sep 14, 2026, 9:14 PM EDT
Completed No phase listed Observational

Evaluation of Cardiorespiratory Events in Subjects Undergoing an Upper and/or Lower Endoscopy Under Current Sedation Practices

NCT00559260
View directory record Official record
Conditions
Sedation for Non-Emergent Upper and/or Lower Endoscopy
Interventions
Passive monitoring with pulse-oximetry, NIBP and ECG
Device
Lead sponsor
Ethicon Endo-Surgery
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Sep 14, 2008 · Synced Sep 14, 2026, 9:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Development of a Novel Convolution Neural Network for Arrhythmia Classification

NCT03662802
View directory record Official record
Conditions
Arrhythmias, Cardiac, Cardiac Arrest, Cardiac Arrythmias
Interventions
Neural Network Classifier
Other
Lead sponsor
Scripps Clinic
Other
Eligibility
Not listed
Enrollment
25,458 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Nov 5, 2020 · Synced Sep 14, 2026, 9:14 PM EDT
Completed Phase 2 Interventional Results available

Study of Ramucirumab (IMC-1121B) Therapy and Corrected QT (QTc) Interval Changes

NCT01017731
View directory record Official record
Conditions
Cancer, Solid Tumor
Interventions
IMC-1121B, Moxifloxacin, Diphenhydramine
Biological · Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
7
States / cities
Atlanta, Georgia • Metairie, Louisiana • Ann Arbor, Michigan + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2015 · Synced Sep 14, 2026, 9:14 PM EDT
Completed No phase listed Observational

Evaluating Electrocardiogram (ECG) Abnormalities From Young Adulthood Through Middle Age

NCT00556751
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
5,115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1985 – 2006
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 17, 2016 · Synced Sep 14, 2026, 9:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

ECG App Algorithms Clinical Validation Study

NCT04247581
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
1-lead ECG
Device
Lead sponsor
Apple Inc.
Industry
Eligibility
22 Years and older
Enrollment
546 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
4
States / cities
Phoenix, Arizona • Coral Gables, Florida • Avon, Indiana + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2021 · Synced Sep 14, 2026, 9:14 PM EDT
Completed Not applicable Interventional

ECG AI-Guided Screening for Low Ejection Fraction

NCT04000087
View directory record Official record
Conditions
Asymptomatic Left Ventricular Systolic Dysfunction (Disorder), Heart Failure
Interventions
AI-enabled ECG-based Screening Tool
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
358 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 30, 2023 · Synced Sep 14, 2026, 9:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Non-Invasive Assessment of Atherosclerosis in Patients With CGD and Other Disorders of the Immune System

NCT01063309
View directory record Official record
Conditions
Atherosclerosis, Chronic Granulomatous Disease (CGD)
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
156 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 27, 2021 · Synced Sep 14, 2026, 9:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Intrepid Clinical Engineering Study

NCT05636332
View directory record Official record
Conditions
Sudden Cardiac Arrest
Interventions
12 lead Electrocardiogram
Diagnostic Test
Lead sponsor
Heartstream US LLC
Industry
Eligibility
29 Days to 89 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Lehigh Acres, Florida
Source: ClinicalTrials.gov public record
Updated Sep 13, 2026 · Synced Sep 14, 2026, 9:14 PM EDT
Recruiting Not applicable Interventional

WATCH (Wearable Artificial inTelligence for Cardiac Function and Health Monitoring)

NCT07058064
View directory record Official record
Conditions
Lymphoma, Sarcoma
Interventions
Electrocardiogram, Echocardiogram, LVEF echocardiogram, Apple Watch, Biospecimen collection, Questionnaires, Cardio-pulmonary exercise test, 6 minute walk test, Grip strength test
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Sep 14, 2026, 9:14 PM EDT